265194047 has 4 divisors (see below), whose sum is σ = 268389240. Its totient is φ = 261998856.

The previous prime is 265194037. The next prime is 265194079. The reversal of 265194047 is 740491562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265194047 - 2¹⁴ = 265177663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265194047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265194037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597472 + ... + 1597637.

It is an arithmetic number, because the mean of its divisors is an integer number (67097310).

Almost surely, 2^265194047 is an apocalyptic number.

265194047 is a deficient number, since it is larger than the sum of its proper divisors (3195193).

265194047 is an equidigital number, since it uses as much as digits as its factorization.

265194047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195192.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 265194047 is about 16284.7796116496. The cubic root of 265194047 is about 642.4725697990.

The spelling of 265194047 in words is "two hundred sixty-five million, one hundred ninety-four thousand, forty-seven".